Print Email Facebook Twitter Experiments and modelling for by-pass pigging of pipelines Title Experiments and modelling for by-pass pigging of pipelines Author Hendrix, M.H.W. (TU Delft Fluid Mechanics) Contributor Henkes, R.A.W.M. (promotor) Breugem, W.P. (promotor) Degree granting institution Delft University of Technology Date 2020-01-31 Abstract (Pipeline Inspection Gauge), which is a cylindrical device that just fits the pipe and propagates through the pipe along with the transport of fluids. While a conventional pig completely seals the pipeline and travels with the same velocity as the production fluids, a by-pass pig has an opening which allows the fluids to partially by-pass the pig. The purpose of the present study is to get a better understanding of the physics of the pigging of a pipeline with multiphase flow transport. The focus is on pigs with by-pass. An important factor in determining the ultimate travel velocity of a by-pass pig is the pressure drop over the by-pass pig, which is characterized by a pressure loss coefficient. We investigate the pressure loss coefficient of three frequently used by-pass pig geometries in a single phase pipeline with Computational Fluid Dynamics (CFD). We present a building block approach for systematic modelling of the pressure loss through the by-pass pigs, which takes the geometry and size of the by-pass opening into account. The CFD results are used to validate the simple building block approach for systematic modelling of the pressure loss through a by-pass pig. It is shown that the models for the pressure loss closely resemble the CFD results for each of the three pig geometries. To reference this document use: https://doi.org/10.4233/uuid:3b3856c6-9eac-4599-be8b-b64fe73e5a5a ISBN 978-94-64020-56-4 Part of collection Institutional Repository Document type doctoral thesis Rights © 2020 M.H.W. Hendrix Files PDF Hendrix_Experiments_and_m ... elines.pdf 9.23 MB Close viewer /islandora/object/uuid:3b3856c6-9eac-4599-be8b-b64fe73e5a5a/datastream/OBJ/view